Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London, Volume 1Richard Taylor, 1832 |
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Page 3
... less perfect , so will their action be , and consequently the perceptions of sound which they communicate . This mode by which the membrana tympani is capable of being adjusted to certain tones , or rather musical keys , will it is ...
... less perfect , so will their action be , and consequently the perceptions of sound which they communicate . This mode by which the membrana tympani is capable of being adjusted to certain tones , or rather musical keys , will it is ...
Page 6
... less than eighteen hundred millions of miles ; especially if we consider that the light of the sun on that planet is above 368 times less intense than it is on our earth , and that probably two thirds of that diminished light is ...
... less than eighteen hundred millions of miles ; especially if we consider that the light of the sun on that planet is above 368 times less intense than it is on our earth , and that probably two thirds of that diminished light is ...
Page 13
... less degrees of impreg- nation of the saline menstrua , which alternately extinguish and re- vive the light at the option of the operator . 6. Spontaneous light is not accompanied with any degree of sen- sible heat , to be discovered by ...
... less degrees of impreg- nation of the saline menstrua , which alternately extinguish and re- vive the light at the option of the operator . 6. Spontaneous light is not accompanied with any degree of sen- sible heat , to be discovered by ...
Page 21
... less with telescopes of large apertures , the sun cannot be viewed without a darkening apparatus . Dr. Herschel had repeatedly used red glasses for this purpose ; but always found , that though the lustre was thereby suf- ficiently ...
... less with telescopes of large apertures , the sun cannot be viewed without a darkening apparatus . Dr. Herschel had repeatedly used red glasses for this purpose ; but always found , that though the lustre was thereby suf- ficiently ...
Page 22
... less refrangible than any of those which affect the sight ; that they are invested with a high power of heating bodies , but with none of illuminating objects , which probably is the reason why they have hitherto escaped unnoticed . The ...
... less refrangible than any of those which affect the sight ; that they are invested with a high power of heating bodies , but with none of illuminating objects , which probably is the reason why they have hitherto escaped unnoticed . The ...
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Common terms and phrases
alburnum alkali ammonia animal appears ascertained bark bodies carbonic acid Charles Hatchett chemical Chenevix coal colour combination Communicated compound considered consists contained copper corundum crystals Davy deduced degree described diameter distance effect equal Everard Home examined experiments F.R.S. Read fluid formed former glass grains guaiacum Hatchett heat Herschel hitherto hydrogen hyperoxygenized muriate inches inferred investigation iron Knight light lime matter means mercury metallic mineral muriatic acid muscles nature nearly nitric acid object observations obtained oxalic oxalic acid oxide oxygen paper particles Phil platina portion potash precipitate produced proportion quantity rays Read June refraction remarks resin salt says similar Sir Joseph Banks soda solar motion solution species specific gravity stances stars stomach substance sulphate sulphur sulphuret surface tannin temperature Thomas Andrew Knight tion Trans trees tubes various vegetable velocity vessels William Herschel William Hyde Wollaston
Popular passages
Page 35 - When a ray of light passes from one medium to another, it is refracted so that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities in the two media.
Page 246 - It is very natural to suppose, that the repellent and attractive energies are communicated from one particle to another particle of the same kind, so as to establish a conducting chain in the fluid ; and that the locomotion takes place in consequence ; and that this is really the case seems to be shown by many facts.
Page xv - On some Physiological Researches respecting the Influence of the Brain on the action of the Heart, and on the Generation of Animal Heat," for which a Copley medal, " the highest honour the Society has to bestow,
Page xiii - Lecture ; an Account of some new analytical Researches on the Nature of certain Bodies, particularly the Alkalies, Phosphorus, Sulphur, Carbonaceous Matter, and the Acids hitherto undecompounded ; with some general Observations on Chemical Theory.
Page 275 - ... the opinion of their formation independently of the presence of this substance. The combustible bases of the fixed alkalies seem to be repelled as other combustible substances, by positively electrified...
Page 92 - wherever two portions of the same light arrive at the eye by different routes, either exactly or very nearly in the same direction, the light becomes most intense when the difference of the routes is any multiple of a certain length, and least intense in the intermediate state of the interfering portions; and this length is different for light of different colours.
Page 290 - ... to be passed through them becomes less. The burners, where the gas is consumed, are connected with the above mains, by short tubes, each of which is furnished with a cock to regulate the admission of the gas to each burner, and to shut it totally off when requisite.
Page 214 - IT can scarcely have escaped the notice of the most inattentive observer of vegetation, that in whatever position a seed is placed to germinate, its radicle invariably makes an effort to descend towards the centre of the earth, whilst the elongated germen takes a precisely opposite direction ; and it has been proved by Du HAMEL* that if a seed, during its germination, be frequently inverted, the points both of the radicle and germen will return to the first direction. Some naturalists have supposed...
Page 118 - The different qualities of leather made with the same kind of skin, seem to depend very much upon the different quantities of extractive matter it contains. The leather obtained by means of...
Page vii - Experiments and Observations on the various Alloys, on the specific Gravity, and on the comparative Wear of Gold.